US11655193B2 - Method for injecting a loaded suspension into a fibrous texture and method for manufacturing a part made of composite material - Google Patents
Method for injecting a loaded suspension into a fibrous texture and method for manufacturing a part made of composite material Download PDFInfo
- Publication number
- US11655193B2 US11655193B2 US16/648,427 US201816648427A US11655193B2 US 11655193 B2 US11655193 B2 US 11655193B2 US 201816648427 A US201816648427 A US 201816648427A US 11655193 B2 US11655193 B2 US 11655193B2
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- fibrous texture
- texture
- loaded suspension
- suspension
- needle
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
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- B28B1/00—Producing shaped prefabricated articles from the material
- B28B1/008—Producing shaped prefabricated articles from the material made from two or more materials having different characteristics or properties
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- B28—WORKING CEMENT, CLAY, OR STONE
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- B28B1/00—Producing shaped prefabricated articles from the material
- B28B1/24—Producing shaped prefabricated articles from the material by injection moulding
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- B28B1/52—Producing shaped prefabricated articles from the material specially adapted for producing articles from mixtures containing fibres, e.g. asbestos cement
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C70/00—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts
- B29C70/02—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts comprising combinations of reinforcements, e.g. non-specified reinforcements, fibrous reinforcing inserts and fillers, e.g. particulate fillers, incorporated in matrix material, forming one or more layers and with or without non-reinforced or non-filled layers
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- B29C70/025—Combinations of fibrous reinforcement and non-fibrous material with particular filler
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- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
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- B29C70/00—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts
- B29C70/04—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts comprising reinforcements only, e.g. self-reinforcing plastics
- B29C70/06—Fibrous reinforcements only
- B29C70/08—Fibrous reinforcements only comprising combinations of different forms of fibrous reinforcements incorporated in matrix material, forming one or more layers, and with or without non-reinforced layers
- B29C70/083—Combinations of continuous fibres or fibrous profiled structures oriented in one direction and reinforcements forming a two dimensional structure, e.g. mats
- B29C70/085—Combinations of continuous fibres or fibrous profiled structures oriented in one direction and reinforcements forming a two dimensional structure, e.g. mats the structure being deformed in a three dimensional configuration
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- C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
- C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
- C04B2235/50—Constituents or additives of the starting mixture chosen for their shape or used because of their shape or their physical appearance
- C04B2235/52—Constituents or additives characterised by their shapes
- C04B2235/5208—Fibers
- C04B2235/5216—Inorganic
- C04B2235/522—Oxidic
- C04B2235/5224—Alumina or aluminates
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- C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
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- C04B2235/522—Oxidic
- C04B2235/5228—Silica and alumina, including aluminosilicates, e.g. mullite
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- C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
- C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
- C04B2235/50—Constituents or additives of the starting mixture chosen for their shape or used because of their shape or their physical appearance
- C04B2235/52—Constituents or additives characterised by their shapes
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- C04B2235/522—Oxidic
- C04B2235/5232—Silica or silicates other than aluminosilicates, e.g. quartz
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- C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
- C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
- C04B2235/50—Constituents or additives of the starting mixture chosen for their shape or used because of their shape or their physical appearance
- C04B2235/52—Constituents or additives characterised by their shapes
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- C04B2235/524—Non-oxidic, e.g. borides, carbides, silicides or nitrides
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- C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
- C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
- C04B2235/50—Constituents or additives of the starting mixture chosen for their shape or used because of their shape or their physical appearance
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- C04B2235/5216—Inorganic
- C04B2235/524—Non-oxidic, e.g. borides, carbides, silicides or nitrides
- C04B2235/5248—Carbon, e.g. graphite
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- C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
- C04B2235/60—Aspects relating to the preparation, properties or mechanical treatment of green bodies or pre-forms
- C04B2235/602—Making the green bodies or pre-forms by moulding
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- C—CHEMISTRY; METALLURGY
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- C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
- C04B2235/60—Aspects relating to the preparation, properties or mechanical treatment of green bodies or pre-forms
- C04B2235/616—Liquid infiltration of green bodies or pre-forms
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
- C04B2235/70—Aspects relating to sintered or melt-casted ceramic products
- C04B2235/74—Physical characteristics
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- C—CHEMISTRY; METALLURGY
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- C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
- C04B2235/70—Aspects relating to sintered or melt-casted ceramic products
- C04B2235/74—Physical characteristics
- C04B2235/77—Density
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- D—TEXTILES; PAPER
- D03—WEAVING
- D03D—WOVEN FABRICS; METHODS OF WEAVING; LOOMS
- D03D25/00—Woven fabrics not otherwise provided for
- D03D25/005—Three-dimensional woven fabrics
Definitions
- the present invention relates to a method for injecting a loaded suspension into a fibrous texture for the manufacture of parts made of composite material by liquid process.
- the object of the present invention is to overcome the aforementioned drawbacks and to propose a solution that allows better controlling the phase of injecting or filling a 3D or 2.5D fibrous texture with a loaded suspension in order to obtain a material or a part with a very low macroporosity rate while being able to easily adapt to the different geometries of envisaged parts.
- the invention proposes a method for injecting a loaded suspension into a fibrous texture having a three-dimensional or multilayer weaving comprising the injection of a suspension containing a powder of solid particles into the volume of the fibrous texture, characterized in that the injection of the loaded suspension is carried out by means of at least one hollow needle in communication with a loaded suspension supply device, each needle being movable in at least one direction extending between a first face and a second opposite face of the fibrous texture so as to inject the loaded suspension at one or more determined depths in the fibrous texture.
- the method of the invention also has great adaptability to variations in the geometries because it is possible to adjust the position and the depth of penetration of each needle into the fibrous texture, regardless of its geometry.
- each hollow needle preferably has an external diameter of between 0.4 mm and 0.8 mm, which allows penetrating the fibrous texture without disturbing its architecture, particularly its weaving, while being compatible with the dimensions of the solid fillers present in the suspension to be injected.
- the hollow needle(s) preferably has/have a beveled end in order to further facilitate their penetration in the fibrous texture and particularly into the strands, that is to say in the intra-yarn spaces.
- the needle(s) is/are moved sequentially between a first face and a second opposite face of the fibrous texture, the needle(s) being stopped at intermediate positions between these two faces, a determined dose of loaded suspension being injected into the texture at each intermediate position. This ensures homogeneous filling of the fibrous texture by locally controlling the position of injection of the loaded suspension into the texture and the delivered quantity thereof.
- the needle(s) is/are moved continuously between a first face and a second opposite face of the fibrous texture, the loaded suspension being injected continuously at a determined flow rate into the fibrous texture. This ensures a gradual and homogeneous filling of the fibrous texture.
- the fibrous texture can be compacted before or after the injection of the loaded suspension in order to reach a targeted fiber ratio.
- the fibrous texture is placed in a compaction tooling comprising at least on one face one or more through holes for the needle(s).
- the invention also relates to a method for manufacturing a part made of composite material comprising:
- the yarns of the fibrous texture are formed of refractory ceramic fibers, the loaded suspension containing refractory ceramic particles as a solid precursor of a ceramic matrix, the method comprising the heat treatment of the refractory ceramic particles present in the fibrous texture in order to form a refractory ceramic matrix in said texture.
- the yarns of the fibrous texture can be in particular, but not exclusively, formed of fibers consisting of one or more of the following materials: the alumina, the mullite, the silica, an aluminosilicate, a borosilicate, silicon carbide and carbon.
- the refractory ceramic particles may be in particular, but not exclusively, made of a material chosen from: the alumina, the mullite, the silica, an aluminosilicate, an aluminophosphate, the zirconia, a carbide, a boride and a nitride.
- FIG. 1 is a schematic sectional view of an injection tooling according to one embodiment of the invention
- FIGS. 2 to 5 show the gradual injection of a loaded suspension into a fibrous texture with the injection tooling of FIG. 1 according to one embodiment of the invention
- FIG. 6 is a schematic sectional view showing an injection of a loaded suspension into a fibrous texture maintained in a compaction tooling according to another embodiment.
- the injection method of the invention applies to the injection of a loaded suspension into fibrous textures obtained by three-dimensional (3D) or multilayer (2.5D) weaving, namely textures having a complex geometry in which it is difficult to introduce and distribute homogeneously solid particles suspended with the methods of the prior art such as for example the injection molding called “RTM” or the submicron powder aspiration called “SPA”, due to the “filter” effect of the texture, which prevents the homogeneous penetration of the loaded suspension throughout the thickness of the texture.
- 3D three-dimensional
- 2.5D multilayer
- the fibrous texture is achieved in a known manner by weaving by means of a jacquard-type loom on which a bundle of warp yarns or strands has been disposed in a plurality of layers, the warp yarns being linked by weft yarns or vice versa.
- the fibrous texture is achieved by three-dimensional (3D) or multilayer (2.5D) weavings.
- three-dimensional weaving or “3D-weaving” or even “multilayer weaving” or “2.5D weaving”, is meant here a weaving mode by which at least some of the weft yarns link warp yarns on several layers of warp yarns or vice versa following a weaving corresponding to a weaving pattern which may be in particular chosen from one of the following weaves: interlock, multi-canvas, multi-satin and multi-twill.
- interlock weave or fabric is meant here a 3D-weaving pattern whose each layer of warp yarns links several layers of weft yarns with all the yarns of the same warp column having the same movement in the plane of the weave.
- it will be an “interlock warp” which is in the form of a multilayer fabric whose linking between the superimposed layers is ensured by the warp yarns.
- the weaving technique used is the one of multi-warp weaving on a warp and weft loom during which the opening of the shed is unidirectional unlike 3D-weaving.
- multi-canvas weave or fabric is meant here a 3D-weaving with several layers of weft yarns whose basic weave of each layer is equivalent to a weave of the conventional canvas type but with some points of the weave that link the layers of weft yarn together.
- multi-satin weave or fabric is meant here a 3D-weaving with several layers of weft yarns whose basic weave of each layer is equivalent to a weave of the conventional satin type but with some points of the weave that link the layers of weft yarn together.
- multi-twill weave or fabric is meant here a 3D-weaving with several layers of weft yarns whose basic weave of each layer is equivalent to a weave of the conventional twill type but with some points of the weave that link the weft yarn layers together.
- the injection method of the invention applies particularly, but not exclusively, to the production of parts made of oxide/oxide composite material or ceramic matrix composite (CMC) material, that is to say including a fibrous reinforcement formed from fibers made of refractory ceramic material densified by a matrix also made of refractory ceramic material.
- CMC ceramic matrix composite
- the yarns used to weave the fibrous texture intended to form the fibrous reinforcement of the part made of composite material can be in particular formed of fibers consisting of one of the following materials: the alumina, the mullite, the silica, an aluminosilicate, a borosilicate, silicon carbide, carbon or a mixture of several of these materials.
- the solid particles present in the suspension to be injected into the fibrous texture may in particular consist of a material chosen from: alumina, mullite, silica, aluminosilicates, aluminophosphates, carbides, borides, nitrides and mixtures of such materials.
- FIG. 1 illustrates the start of a method for injecting a loaded suspension according to one embodiment of the invention.
- a fibrous texture 10 obtained by 3D or 2.5D weaving is placed on a support plate 20 so as to present an exposed face 10 a facing an injection tooling 100 .
- the injection tooling 100 comprises a casing 110 able to move along a double direction D V as indicated in FIG. 1 .
- the lower edge 110 b of the casing 110 includes a plurality of hollow needles 120 in communication with an injection chamber 130 delimited inside the casing 110 by a piston 140 and the lower edge 110 b of the casing.
- a loaded suspension 150 is introduced into the injection chamber 130 through a port 131 .
- Each hollow needle 120 preferably includes one end 121 which is beveled and has a diameter d 120 of between 0.4 mm and 0.8 mm.
- the position of the hollow needles 120 and, more precisely, the position of their ends 121 in the fibrous texture are controlled by the displacement of the casing 110 along a double direction D V .
- the injection begins with the positioning of the ends 121 of the hollow needles 120 as close as possible to the lower face 10 b of the fibrous texture 10 in contact with the support plate 20 , the suspension being then injected into the texture 10 by setting in motion the piston 140 which allows injecting a first quantity of loaded suspension 150 over a determined thickness in the fibrous texture 10 .
- the injection of the loaded suspension 150 into the fibrous texture 10 continues as illustrated in FIGS. 3 to 5 by moving the ends 121 of the hollow needles 120 from the lower face 10 b of the texture to the vicinity of the upper face 10 a of the fibrous texture 10 so as to fill the fibrous texture throughout its thickness with the loaded suspension 150 .
- the injection of the loaded suspension 150 into the fibrous texture 10 can be carried out in two ways.
- the loaded suspension 150 can be injected continuously while the needles are gradually moved between the two opposite faces 10 b and 10 a of the fibrous texture 10 , that is to say from the position illustrated in FIG. 2 to the position illustrated in FIG. 5 .
- the loaded suspension 150 can also be injected sequentially.
- the needle(s) is/are moved sequentially between the two opposite faces 10 b and 10 a of the fibrous texture 10 , the needle(s) being stopped at intermediate positions between these two faces, corresponding here to the positions illustrated in FIGS. 2 to 5 , a determined dose of loaded suspension being injected into the texture at each intermediate position.
- the loaded suspension can be injected into the fibrous texture before its compaction, the latter being carried out subsequently in order to reach in particular a targeted fiber ratio.
- the loaded suspension can also be injected into the fibrous texture while the latter is already compacted as illustrated in FIG. 6 .
- a 3D or 2.5D woven fibrous texture is maintained in a compaction tooling 300 able to apply thereon in a determined compaction rate.
- the tooling 300 includes on its face 300 a facing an injection tooling 400 a plurality of perforations 310 intended to allow the passage of needles 420 of the injection tooling.
- the injection tooling 400 is similar to the injection tooling 100 described above, namely it comprises a casing 410 able to move along a double direction D V as indicated in FIG.
- the lower edge 410 b of the casing 410 includes a plurality of hollow needles 420 in communication with an injection chamber 430 delimited inside the casing 410 by a piston 440 and the lower edge 410 b of the casing.
- a loaded suspension 450 is introduced into the injection chamber 430 through a port 431 .
- Each hollow needle 420 preferably includes one end 421 which is beveled and which has a diameter of between 0.4 mm and 0.8 mm.
- the injection of the loaded suspension 450 into the fibrous texture 30 is carried out as already described above in relation to FIGS. 2 to 5 , that is to say by moving the ends 421 of the hollow needles 420 from the lower face 30 b of the texture to the vicinity of the upper face 30 a of the fibrous texture 30 so as to fill the fibrous texture throughout its thickness with the loaded suspension 450 .
- the injection of the loaded suspension 450 into the fibrous texture 30 can be carried out continuously or sequentially.
- the injection of the loaded suspension is carried out by means of a plurality of hollow needles extending along the same row aligned with one of the dimensions of the texture, for example its width.
- the needles are moved in the lengthwise direction of the texture according to a determined pitch in order to cover the entire texture with the local injection of loaded suspension.
- the injection tooling can include a matrix of hollow needles extending both in the widthwise and lengthwise directions of the fibrous texture, the matrix of needles being possibly moved in the direction of the width and/or of the length of the texture when the matrix does not entirely cover the exposed surface of the fibrous texture.
- the injection method is implemented with a single needle which is moved in different directions relative to the fibrous texture in order to inject the loaded suspension throughout the volume of the fibrous texture.
- the fibrous texture is injected with the loaded suspension, it is shaped by being possibly compacted according to a compaction rate making it possible to obtain a determined fiber ratio.
- the liquid phase of the suspension does not correspond to a matrix precursor as it is the case in particular with an aqueous solution, it is not necessary to remove it from the preform unlike the methods of the art prior.
- suspensions having a high viscosity that is to say suspensions comprising a small proportion of liquid phase in comparison with the proportion of solid fillers. Thanks to the present invention, it is possible to implement loaded suspensions whose viscosity can reach 10,000 mPa ⁇ s, against only 400 mPa ⁇ s at the very most for injection methods of prior art such as the methods of the type injection molding (RTM) or submicron powder aspiration (SPA).
- the preform is then subjected to a heat treatment in order to transform the matrix precursor(s) present in the loaded suspension injected.
- the heat treatment consists in sintering the solid particles in order to form the matrix in the preform.
- the invention is not limited to the production of a part made of oxide/oxide or CMC composite material.
- the invention can also be applied to the manufacture of a part made of an organic matrix composite material, the matrix in this case being loaded with solid particles.
- the fibrous structure can be achieved by 3D or 2.5D weaving between carbon yarns and injected according to the method of the invention with a loaded suspension comprising an epoxy-type resin and solid fillers consisting of black carbon, carbides, or oxides.
- the heat treatment for transforming the matrix precursor consists in polymerizing the resin.
- a test for implementing a method according to the invention was carried out. This consisted in injecting a fibrous texture obtained by interlock weaving with Nextel 610TM alumina yarns with a thread count of 8 yarns/cm.
- the loaded suspension has been injected with a single hollow needle with a diameter of 0.8 mm and having a beveled end, the needle being connected to an injection syringe.
- the needle is gradually moved through the thickness of the fibrous texture (progressive withdrawal of the needle between two opposite faces of the texture) at a speed of 6 cm/min with continuous injection of the suspension.
- the entire texture is injected by multiplying the injection points with the needle, the latter being moved by one pitch of 1 cm between each injection position in the two dimensions of the texture (width and length).
- the injection of the texture in its entire volume under the conditions described above was carried out in 10 minutes.
- injection methods of the prior art such as the methods of the type injection molding (RTM) or of submicron powder aspiration (SPA) takes several hours.
- a molding of the texture is carried out under a pressure of 5 bars and at a temperature of 350° C.
- a heat treatment for sintering the alumina particles is then carried out at 850° C. under ambient atmosphere.
- a part made of oxide/oxide composite material which has a fiber volume ratio of 45% and a porosity ratio of 24% is obtained.
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Composite Materials (AREA)
- Mechanical Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Filtering Materials (AREA)
- Woven Fabrics (AREA)
- Manufacture Of Alloys Or Alloy Compounds (AREA)
- Compositions Of Oxide Ceramics (AREA)
- Reinforced Plastic Materials (AREA)
- Producing Shaped Articles From Materials (AREA)
- Materials For Medical Uses (AREA)
- Chemical Or Physical Treatment Of Fibers (AREA)
- Moulding By Coating Moulds (AREA)
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
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FR1758658A FR3071257B1 (fr) | 2017-09-19 | 2017-09-19 | Procede d'injection d'une suspension chargee dans une texture fibreuse et procede de fabrication d'une piece en materiau composite |
FR1758658 | 2017-09-19 | ||
PCT/FR2018/052283 WO2019058050A1 (fr) | 2017-09-19 | 2018-09-18 | Procede d'injection d'une suspension chargee dans une texture fibreuse et procede de fabrication d'une piece en materiau composite |
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US20210362368A1 US20210362368A1 (en) | 2021-11-25 |
US11655193B2 true US11655193B2 (en) | 2023-05-23 |
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US16/648,427 Active 2040-06-27 US11655193B2 (en) | 2017-09-19 | 2018-09-18 | Method for injecting a loaded suspension into a fibrous texture and method for manufacturing a part made of composite material |
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US (1) | US11655193B2 (fr) |
EP (1) | EP3684741A1 (fr) |
JP (1) | JP7204745B2 (fr) |
CN (1) | CN111132954B (fr) |
CA (1) | CA3076098A1 (fr) |
FR (1) | FR3071257B1 (fr) |
RU (1) | RU2770020C2 (fr) |
WO (1) | WO2019058050A1 (fr) |
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FR3096299B1 (fr) * | 2019-05-23 | 2023-05-12 | Safran | Procédé de fabrication d’une pièce en matériau composite par injection d’une barbotine chargée dans une texture fibreuse |
CN110981517B (zh) * | 2019-12-17 | 2023-08-25 | 湖南金博碳素股份有限公司 | 碳陶复合材料的制备方法和应用及制备用针刺机构 |
CN111420463B (zh) * | 2020-04-01 | 2021-05-25 | 中国科学院过程工程研究所 | 一种纳米碳材料复合滤材及其制备方法和用途 |
CN111420464B (zh) * | 2020-04-01 | 2021-07-27 | 中国科学院过程工程研究所 | 一种纳米碳材料复合滤材的制备装置及方法 |
US20230227366A1 (en) * | 2021-09-01 | 2023-07-20 | Raytheon Technologies Corporation | CONTROLLED PARTICLE INJECTION IN FABRIC FOR IMPROVED MICROSTRUCTRE HOMOGENEITY IN CMCs |
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2017
- 2017-09-19 FR FR1758658A patent/FR3071257B1/fr active Active
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Publication number | Publication date |
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CA3076098A1 (fr) | 2019-03-28 |
FR3071257A1 (fr) | 2019-03-22 |
EP3684741A1 (fr) | 2020-07-29 |
BR112020005296A2 (pt) | 2020-09-24 |
RU2020112395A (ru) | 2021-10-20 |
US20210362368A1 (en) | 2021-11-25 |
CN111132954A (zh) | 2020-05-08 |
RU2020112395A3 (fr) | 2021-11-16 |
RU2770020C2 (ru) | 2022-04-14 |
FR3071257B1 (fr) | 2021-08-20 |
CN111132954B (zh) | 2022-07-29 |
JP2020534187A (ja) | 2020-11-26 |
JP7204745B2 (ja) | 2023-01-16 |
WO2019058050A1 (fr) | 2019-03-28 |
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